What It Means
- When the LED displays NF, this indicates 2880 hour filter replacement reminder. To clear press the LED button 5 times within 15 seconds when the CL or NF shows to reset and clear code.
Lennox Split & Multi-Split
Lennox Error Code NF
Split & Multi-Split: Mini-split unit (outdoor)
Causes & actions from Lennox
How it shows
- corp1816 multizone outdoor display: NF
This manual entry does not list further causes or actions.
Applicable models & manual sources
- MPA
When the LED displays NF, this indicates 2880 hour filter replacement reminder. To clear press the LED button 5 times within 15 seconds when the CL or NF shows to reset and clear code.
MPA, MPB, MLA
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
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